結果

問題 No.1011 Infinite Stairs
ユーザー sansaquasansaqua
提出日時 2020-03-20 21:48:00
言語 Common Lisp
(sbcl 2.3.8)
結果
AC  
実行時間 487 ms / 2,000 ms
コード長 5,116 bytes
コンパイル時間 849 ms
コンパイル使用メモリ 40,600 KB
実行使用メモリ 130,164 KB
最終ジャッジ日時 2023-09-24 10:56:17
合計ジャッジ時間 3,975 ms
ジャッジサーバーID
（参考情報） 		judge14 / judge11
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 8 ms
23,120 KB
testcase_01 AC 8 ms
23,248 KB
testcase_02 AC 15 ms
24,656 KB
testcase_03 AC 322 ms
93,388 KB
testcase_04 AC 63 ms
34,984 KB
testcase_05 AC 487 ms
130,164 KB
testcase_06 AC 8 ms
23,204 KB
testcase_07 AC 13 ms
27,700 KB
testcase_08 AC 9 ms
23,132 KB
testcase_09 AC 8 ms
23,148 KB
testcase_10 AC 12 ms
27,560 KB
testcase_11 AC 73 ms
39,568 KB
testcase_12 AC 10 ms
25,656 KB
testcase_13 AC 45 ms
31,888 KB
testcase_14 AC 9 ms
23,392 KB
testcase_15 AC 60 ms
38,344 KB
testcase_16 AC 225 ms
71,828 KB
testcase_17 AC 28 ms
30,948 KB
testcase_18 AC 135 ms
51,056 KB
testcase_19 AC 11 ms
25,788 KB
testcase_20 AC 9 ms
23,392 KB
testcase_21 AC 60 ms
34,576 KB
testcase_22 AC 113 ms
49,724 KB
testcase_23 AC 70 ms
36,876 KB
testcase_24 AC 75 ms
43,896 KB
testcase_25 AC 116 ms
47,460 KB
testcase_26 AC 32 ms
30,256 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
; compiling file "/home/judge/data/code/Main.lisp" (written 24 SEP 2023 10:56:12 AM):
; processing (SB-INT:DEFCONSTANT-EQX OPT ...)
; processing (SET-DISPATCH-MACRO-CHARACTER #\# ...)
; processing (DISABLE-DEBUGGER)
; processing (DEFMACRO DEFINE-MOD-OPERATIONS ...)
; processing (DEFMACRO DBG ...)
; processing (DEFMACRO DEFINE-INT-TYPES ...)
; processing (DEFINE-INT-TYPES 2 ...)
; processing (DECLAIM (INLINE PRINTLN))
; processing (DEFUN PRINTLN ...)
; processing (DEFCONSTANT +MOD+ ...)
; processing (DEFINE-MOD-OPERATIONS +MOD+)
; processing (DEFUN MAIN ...)
; processing (MAIN)

; wrote /home/judge/data/code/Main.fasl
; compilation finished in 0:00:00.110

ソースコード

diff # 

(eval-when (:compile-toplevel :load-toplevel :execute)
  (sb-int:defconstant-eqx OPT
    #+swank '(optimize (speed 3) (safety 2))
    #-swank '(optimize (speed 3) (safety 0) (debug 0))
    #'equal)
  #+swank (ql:quickload '(:cl-debug-print :fiveam) :silent t)
  #-swank (set-dispatch-macro-character
           ;; enclose the form with VALUES to avoid being captured by LOOP macro
           #\# #\> (lambda (s c p) (declare (ignore c p)) `(values ,(read s nil nil t)))))
#+swank (cl-syntax:use-syntax cl-debug-print:debug-print-syntax)
#-swank (disable-debugger) ; for CS Academy

;; BEGIN_INSERTED_CONTENTS
;;;
;;; Arithmetic operations with static modulus
;;;

;; FIXME: Currently MOD* and MOD+ doesn't apply MOD when the number of
;; parameters is one.
(defmacro define-mod-operations (divisor)
  `(progn
     (defun mod* (&rest args)
       (reduce (lambda (x y) (mod (* x y) ,divisor)) args))

     (eval-when (:compile-toplevel :load-toplevel :execute)
       (sb-c:define-source-transform mod* (&rest args)
         (if (null args)
             1
             (reduce (lambda (x y) `(mod (* ,x ,y) ,',divisor)) args))))

     (defun mod+ (&rest args)
       (reduce (lambda (x y) (mod (+ x y) ,divisor)) args))

     (eval-when (:compile-toplevel :load-toplevel :execute)
       (sb-c:define-source-transform mod+ (&rest args)
         (if (null args)
             0
             (reduce (lambda (x y) `(mod (+ ,x ,y) ,',divisor)) args))))

     (define-modify-macro incfmod (delta)
       (lambda (x y) (mod (+ x y) ,divisor)))

     (define-modify-macro decfmod (delta)
       (lambda (x y) (mod (- x y) ,divisor)))

     (define-modify-macro mulfmod (multiplier)
       (lambda (x y) (mod (* x y) ,divisor)))))

(defmacro dbg (&rest forms)
  #+swank
  (if (= (length forms) 1)
      `(format *error-output* "~A => ~A~%" ',(car forms) ,(car forms))
      `(format *error-output* "~A => ~A~%" ',forms `(,,@forms)))
  #-swank (declare (ignore forms)))

(defmacro define-int-types (&rest bits)
  `(progn
     ,@(mapcar (lambda (b) `(deftype ,(intern (format nil "UINT~A" b)) () '(unsigned-byte ,b))) bits)
     ,@(mapcar (lambda (b) `(deftype ,(intern (format nil "INT~A" b)) () '(signed-byte ,b))) bits)))
(define-int-types 2 4 7 8 15 16 31 32 62 63 64)

(declaim (inline println))
(defun println (obj &optional (stream *standard-output*))
  (let ((*read-default-float-format* 'double-float))
    (prog1 (princ obj stream) (terpri stream))))

(defconstant +mod+ 1000000007)

;;;
;;; Body
;;;

(define-mod-operations +mod+)

(defun main ()
  (declare #.OPT)
  (let* ((n (read))
         (d (read))
         (k (read))
         (dp (make-array (list (+ n 1) (+ k 2)) :element-type 'uint31)))
    (declare (uint16 n d k))
    (setf (aref dp 0 0) 1)
    (dotimes (i n)
      (loop for x from (- k 1) downto 0
            do (incfmod (aref dp (+ i 1) (+ x 1))
                        (aref dp i x))
               (incfmod (aref dp (+ i 1) (min (+ k 1) (+ x d 1)))
                        (the uint31 (- +mod+ (aref dp i x)))))
      (loop for x from 0 to k
            do (incfmod (aref dp (+ i 1) (+ x 1))
                        (aref dp (+ i 1) x))))
    ;; #>dp
    (println (aref dp n k))))

#-swank (main)

;;;
;;; Test and benchmark
;;;

#+swank
(defun io-equal (in-string out-string &key (function #'main) (test #'equal))
  "Passes IN-STRING to *STANDARD-INPUT*, executes FUNCTION, and returns true if
the string output to *STANDARD-OUTPUT* is equal to OUT-STRING."
  (labels ((ensure-last-lf (s)
             (if (eql (uiop:last-char s) #\Linefeed)
                 s
                 (uiop:strcat s uiop:+lf+))))
    (funcall test
             (ensure-last-lf out-string)
             (with-output-to-string (out)
               (let ((*standard-output* out))
                 (with-input-from-string (*standard-input* (ensure-last-lf in-string))
                   (funcall function)))))))

#+swank
(defun get-clipbrd ()
  (with-output-to-string (out)
    (run-program "powershell.exe" '("-Command" "Get-Clipboard") :output out :search t)))

#+swank (defparameter *this-pathname* (uiop:current-lisp-file-pathname))
#+swank (defparameter *dat-pathname* (uiop:merge-pathnames* "test.dat" *this-pathname*))

#+swank
(defun run (&optional thing (out *standard-output*))
  "THING := null | string | symbol | pathname

null: run #'MAIN using the text on clipboard as input.
string: run #'MAIN using the string as input.
symbol: alias of FIVEAM:RUN!.
pathname: run #'MAIN using the text file as input."
  (let ((*standard-output* out))
    (etypecase thing
      (null
       (with-input-from-string (*standard-input* (delete #\Return (get-clipbrd)))
         (main)))
      (string
       (with-input-from-string (*standard-input* (delete #\Return thing))
         (main)))
      (symbol (5am:run! thing))
      (pathname
       (with-open-file (*standard-input* thing)
         (main))))))

#+swank
(defun gen-dat ()
  (uiop:with-output-file (out *dat-pathname* :if-exists :supersede)
    (format out "")))

#+swank
(defun bench (&optional (out (make-broadcast-stream)))
  (time (run *dat-pathname* out)))
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